National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Tests of thermal and radiation embrittlement of reactor steel 15CH2MFA
Dvořáková, M. ; Kadlecová, Jana ; Konop, R. ; Tomáš, Ivan ; Vértesy, G.
Results are presented of mechanical destructive and magnetic nondestructive tests of the 15Ch2MFA steel, used for pressure vessels of the VVER40 reactor type. Two series of samples were tested: (i) samples, embrittled by a special thermal processing, and (ii)samples, embrittled in a reactor by high fluences of neutron radiation. Results of mechanical impact Charpy tests are compared with results of Magnetic Adaptive Testing carried out on the two sample series. The existence of mutual correlation between the two types of examination indicates alternative of replacement of the mechanical destructive tests of classical surveillance samples by magnetic tests, which are nondestructive.
Optimalizace charakteristiky materiálu pomocí adaptivního testování
Vértesy, G. ; Tomáš, Ivan ; Mészáros, I.
A new procedure, called Adaptive Testing was applied for non-destructive characterization of cold-rolled austenitic stainless steel samples. The flat samples were magnetized by an attached yoke, and sensitive, reliable descriptors of their plastic deformation strain were obtained.

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